The Globe and Mail reports in its Wednesday edition that Wall Street closed higher on Tuesday, with tech stocks leading the charge as renewed enthusiasm for artificial intelligence offset concerns over potential disruptions caused by the nascent technology. A Reuters dispatch to The Globe says Bay Street ended at a fresh record high. Speculation regarding AI's possible impact on a wide variety of sectors has prompted oversized moves in stocks and indexes in recent weeks. "We're in for a period of time where the market will be going through some uncertainty and today we're seeing a little bit of a buy on the dip," said Matthew Keator at Keator Group in Lenox, Mass. "We're going to see day-to-day movements but over all, there's so much unknown in terms of how AI ends up being additive or disruptive to some of these companies." All three major U.S. stock indexes posted solid gains on the session. AI lab Anthropic announced several new plug-ins targeting areas such as investment banking and human resources, weeks after its earlier releases stoked a sell-off of traditional software stocks. The company said its new plugins were developed jointly with partners, among them Thomson Reuters; its shares jumped 11.5 per cent.